Street-sweeper.



A. HUTOHINS & E. H. McP ARLAND. STREET SWEEPER.

APPLICATION FILED DEC. 27, 1910.

Patented Feb. 11, 1913.

4 SHEETSSHEET l.

Suva M5016 I A. HUTGHINS & E. H. MQFARLAND.

STREET SWEEPER.

APPLICATION FILED DEG.27,1910.

Patented Feb. 11, 1913.

4 SHEETS-SHEET 2 A. HUTOHINS & B. H. MQFARLAND.

STREET SWEEPER.

APPLECATNEN FILED DEG.

Patented Feb. 11, 1913.

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ALBERT HUTCHINS AND EDWARD H. FICFABLAND, 01: OAK CREEK, COLORADQ.

STREET-SWEEPER.

Specification of Letters Patent.

Application filed December 27, 1810. Serial No. 599,242.

To all whom it may concern:

Be it known that we, ALBERT Huromns and EDWARD H. MCFARLAND, citizens ofthe United States, residing at Oak Creek, in the county of Routt andState of Colorado, have invented new and useful Improvements inStreet-Sweepers, of which the following is a specification.

This invention relates to a street sweeper of that type including arevolving brush that sweeps the dirt from the curb toward the middle ofthe'street.

The invention has for one of its objects to improve and simplify theconstruction and operation of machines of this character so as to bereliable and efficient in use, readily controlled, and comparativelyinexpensive to manufacture and keep in repair.

Another object of the invention is the provision of an improved meansfor cleaning the street immediately along the curb so as to throw thedirt from the gutter into the path of the main brush that trails behindthe machine.

With these objects in view and others, as will appear as the descriptionproceeds, the invention comprises the various novel features ofconstruction and arrangement of parts which will be more fully describedhereinafter and set forth with particularity in the claims appendedhereto.

In the accompanying drawings, which illustrate one embodiment of theinvention, Figure 1 is a side view of the machine. Fig. 2 is a plan viewthereof with a portion of the body broken away to illustrate thebrushdriving mechanism. Fig. 3 is a front view of the machine, thebrushes not being shown.

' Fig. 4 is a vertical transverse section on line 4-4, Fig. 2. Fig. 5 isa vertical transverse section on line 55, Fig. 2. Fig. 6 is a viewsimilar to Fig. 5, showing the gutter cleaning brush raised so as to beout of the way of obstructions in the street.

Similar reference characters are employed to designate correspondingparts throughout the views.

Referring to the drawings, A designates a frame or body of any approvedconstruction, which is supported by front wheels 1 and 2 and rear wheels3 and 4, the machine being drawn by horses or self-propelled, asdesired. The rear wheels are fixed on the 5 which rotates in bearings 6on the frame A, and this axle serves to drive the gutter-cleaning andmain brushes. The

front wheel 2, which is adapted to run in the gutter of the street beingcleaned, is inclined to the vertical and rotates on an inclined axlestub 6 so that the bottom of the wheel will strike the'curb, as at 7Fig. 3, and prevent the gutter-cleaning device from striking the curband interfering with efficient operation. This stub axle can besupported or reinforced by a bracket 8 on the front axle 9, there beinga fifth wheel 10 between the front axle and the bolster 11.

At the side of the frame nearest the curb is arranged a rake B or otherdirt-loosening device, the said rake having teeth 12 that drag along inthe gutter behind the wheel 2 so as to loosen the dirt. Immediatelybehind the rake is a rotary brush C that throws the dirt out of thegutter in a lateral direction so that the dirt will be taken up by themain brush D that trails alon behind the machine. The brush C may be ofany approved construction, the one shown consisting of a spider 13mounted on the lower end of a rotary shaft 14, the arms of the spiderbeing provided with brushes 15 that successively come into contact withthe gutter and sweep the dirt laterally therefrom. The shaft 14 isinclined to the vertical, as clearly shown in Fig. 4, and rotates in abracket-bearing 16 that is suspended on a driving shaft 17 that extendstransversely to the machine. This shaft rotates in bearings 18 on theframe A and has on its gutter end a miter gear 19 connected with themiter gear 20 on the upper end of the shaft 17. The end of the shaft 17that carries the brush C is adapted to be raised and lowered so as toelevate the brush out of the way of obstructions in the street. For thispurpose, the shaft 17 is made in two parts, a and I), connected by theuniversal joint 21. The bearing 18 for the part a. is vertically-movablein a guide 22 on the frame A, and the vertical movement is efiected by alever 23 fulcrumed at 24 in the upper end of the guide and connected bya flexible link 25 with the bearing 18. his leverhas a cam 26 so that asthe lever 23 is pressed downwardly, the element 25 winds on the part 261 of the lever and causes the brush C to be Patented Feb. 111, 12113.

raised. Since the bearing bracket 16 is mounted on the frame A at apoint adjacent is an oblique shaft 36 that is arranged par-' the driversseat 34.

The main brush D is located with its axis obliquely to the, direction oftravel for throwing the dirt outwardly from the curb toward the middleof the street. This brush is mouiited on the swinging frame 34 that ispivoted at 35, to the rear part of the mainframe so that the brushwilltrail behind the machine. On theframe allel with the axis of the brushD, and this shaft'is driven from the'axle '5 by a skew gparing. Thebrush is positively driven om a count'ershaft 36 by a sprocket-mechanism 38.

i be the best embodiment thereof, we desire From the foregoingdescriptiomtakenin connection with the accompanyin gdraw ings, the:advantages of 'theconstructionand of the method of operation. will-"bereadily apparent :to thoseskilled in the art to whlch the inventionappertains, and

while we have described the' principle of operation-of the invention,together with the apparatus which we now consider to to have itunderstood that the a paratus shown ismerely illustrative, and t at suchchanges may be madewhen desired. as are I within the scope of the claimsappended hereto. g Having thus described the invention, what we claim asnew is 1 In a sweeper, the -c nnbination of a ing a body, a

I curb.

frame, wheels supporting the same, and a gutter-cleaning means at oneside of the frame, the front wheel of the machine at the gutter sidebeing inclined to the vertical to strike the curb and thereby maintainthe gutter-cleaning means out of contact with the curb.

2. A street sweeping machine comprising a body, wheels supporting thesame, guttercleaning means disposed at the side of the body, and adirt-loosening element mounted at theside of the body in front of thesaid cleaning means, one of said wheels be ing'located in front of thesaid element and inclined to the vertical so that the lowest part ofthewheel will project laterally beyond thegutter cleaning means and dirtloosening' element for preventing the same from coming into contact withthe curb.

3. A street sweeping machine comprisutter cleaning means, and wheelssupporting the body, one of the wheels being located in front of'thegutter cleaning means having its axis so disposed that the lowest partof the wheel projects laterall beyond the utter cleaning means formaintaining the atter out of contact with theicurb.

4. A street sweeping machine comprisin a .body, front and rear axles,the front ax e having one of its stubs disposed upwardly at an angle tothe horizontal, wheels on the stubs of the axle, and a gutter sweeping;means disposed .behind the wheel mounlted on the angularly-disposed stubwhereby the wheel. maintains the gutter cleaning means out of contactwith the In testimony whereoffwe affix our signatures in presence of twowitnesses.

I ALBERT HUTCHINS. ED, MoFARLAND. Witnesses:

G. F. WA'rr,

ALLEN CLIFF.

